const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')


const index = require('./routes/index')
const users = require('./routes/users')
const register = require('./routes/register')
const update = require('./routes/user/update')
const deleteUser = require('./routes/user/delete')
const order = require('./routes/order')



// error handler
onerror(app)



//解决跨域问题的
const cors = require('koa2-cors')
app.use(cors({
  origin: ctx => ctx.header.origin,
  credentials: true
}))
const MongoConnect = require('./db/index')
const router = require('./routes/order')
MongoConnect() //导入并连接数据库



// middlewares
app.use(bodyparser({
  enableTypes: ['json', 'form', 'text']
}))


app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

app.use(views(__dirname + '/views', {
  extension: 'pug'
}))





// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// routes
app.use(index.routes(), index.allowedMethods())
app.use(users.routes(), users.allowedMethods())
app.use(register.routes(), register.allowedMethods())
app.use(update.routes(), update.allowedMethods())
app.use(deleteUser.routes(), deleteUser.allowedMethods())
app.use(order.routes(), order.allowedMethods())

// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
});





module.exports = app
